I am in a team that is working on visual standards and color palettes seem to be a very subjective issue. Hope this will solve. Though it is written data driven, but i don't know how much data is being used at the backend to create these combinations.

I have used https://coolors.co/ for some time and comparatively this one lacks some features like adjusting colors in a palette, exporting a color palette in various formats, generating a color palette from an image (quite useful for instagram users).